Clamping device for guy wire guards



yv 1952 A. G. STEINMAYER 7 2,604,178

CLAMPING DEVICE FOR GUY WIRE GUARDS Filed July 9, 1948 BY mm Patented July 22, L952 Alwin G. Steinmayer, Milwaukee, WiS.,"flSSigl101"- to McG'raw Electric Company, a corporation of Delaware Application July 9, 1948, Serial No. 37,315

v ZClaims.

This invention relates to improvements in a clamping device for guy wire guards and the like.

An object of this invention is to provide a guard or shield with fastening means that is relatively simple in construction, is inexpensive to manuiacture and is easy to assemble, to install on any guards. 'andyto mount on guy rods or cablesf v other'novel features and advantages of the invention disclosed in the drawings will become apparent from the description which follows.

' Inthe drawings:

Fig. 1 is a fragmentary View of a guy guard assembly including the novel clamping device here-- in disclosed. m r Fig-'2 is a side view: as seen from the bottom relative to Fig. 1.

Fig. 3 is an enlarged view in transverse section taken on the line 33 of Fig. 1 showing the clamping device with the jaws spread apart.

Fig. 4 is an enlarged view in transverse section taken on the line 3-3 of Fig. 1 showing a guy rod clamped in place.

Fig. 5 is an enlarged side view partly in section showing the clamping device mounted in the guard.

Like numerals are used to designate like parts v in the various views.

The guard comprises an elongated channelshaped body member I which is slotted at 2 on one side longitudinally of the member to admit a .guy rod 4 and cable 5 radially of the body member I, the slot 2 being widened at one end 3 to admit cable and rod attaching means 6. A clip I is positioned at one end of the guard diametrically opposite the widened end 3 of the slot 2 and is suitably fastened to the inner periphery of the body member I by means such as a rivet 8. The clip I is made of a relatively narrow piece of material defining a substantially spiral form terminating in a U-shaped hook portion 9 projecting a short distance towards the side of member I to which the clip I is attached. The end I on the clip 1 projects in a direction generally normal to the hook portion 9 and substantially tangential to the spiral portion of the clip. As indicated, the clip embraces the cable 5.

At the end of the body member I opposite that to which the clip 1 is attached, a clamp I I is provided and includes a support I2 having relatively spaced tongue portions I3 projecting through corresponding slots I4 in the member I and clinched to the exterior of the member I to hold the support fixedly in place with spacer or aligning portions I5 in contact with the inner periphery of the member I.

At one end each of the clampingsjaws I6. and Il is'provided with an aperture I8- through which one of the tongue portions I3 of support I2 extends to thereby provide a pivot mounting: on support I2 fOr-the clampingjaw. The support 42 bein positioned diametrically opposite the slot 2 in member I so that the other. end of each clamping jaw I6 and H, each of which isprovided with a solid arcuate clamping surface; I9, face the slot 2 to embrace the guy rod- 6." A bolt 29 projects-through a hole '2! in the member I and through apertures 22 situated between the arcuate clamping surfaces I9 and pivot aperture I8 oi" the clamping jaws 116 and IL'QA; cylindrical spacer 23 is loosely positioned on the bolt between the jaw I7 and the enlarged shank portion 24 on the bolt 29. The threaded end of the bolt 26 engages the cylindrical nut which serves as an actuator for the jaw I6. The spacer 23 and nut 25 are cylindrically shaped with their axis relative to the axis of member I, so as to provide constant contact between each clamping jaw I5 and I! and the spacer 23 and nut 25 regardless of the angular position of bolt 20 in apertures 22. The apertures 22 in clamping jaws I6 and I! being oval shaped with the transverse axis lying between aperture I8 and arcuate clamping surface I9 provide the clamping jaws I6 and I! free movement without binding on the bolt 20 when the jaws are pivoted on support I2. The conjugate axis of the aperture 22 being of a size to hold the nut 25 and spacer 23 within the jaw channels 26.

As indicated, the clamping jaws I6 and I! are channel shaped and the sides 25 serve as means for holding the spacer 23 and nut 25 against rotation about the axis of the bolt 20, the ends of the spacer 23 and nut 25 being flat in complement to the sides 26 of the jaws. Keepers 2'! which project inwardly from the sides 26 of clamping jaws I6 and I1 hold the spacer 23 and nut 25 within the respective jaw channels when the jaws are moved from each other as more specifically described hereafter.

When the bolt 25 is revolved in one direction nut 25 being threaded and restrained from turning exerts pressure on clamping jaw I6 drawing it toward clamping jaw 51, which in turn is drawn toward clamping jaw I6 by the shank portion 24 of bolt 26 exerting pressure on spacer 23 on bolt 21!. Both clamping jaws I6 and I! being pivoted on support I2 are thus caused to embrace through nut 25, which then contacts keepers '21 moves the clamping jaw l6 away from clamping jaw H, which in turn is allowed to travel on bolt 20 as the shank portion 24 on bolt 20 is withdrawn from contact with spacer 23 and so releases guy rod 4 from the arcuate clamping surfaces l9. 7

As seen from the above description the clamping jaws I6 and I! are so pivoted and actuated that they move laterally relative to each other in a plane disposed diametrically of the member I and passing through the axis of the bolt hole 2| therein. 7

I have disclosed a preferred embodiment of the invention but this is not to be construed as a limitation thereof.

I claim:

1. In a device of the character described, the combination with a support, of a pair of clamping jaws pivotally mounted at corresponding adjacent ends on said support, said jaws each comprising a channel member having a clamping surface opposite said channel, a jaw actuating bolt extending loosely through corresponding apertures in said jaws situated between said pivot mounting and said clamping surface, and jaw engaging members mounted on said bolt and each having an arcuate surface in contact with the bottom of one of said channels and having substantially parallel ends engaging the sides of said channel, said bolt engaging said members in one direction of revolution thereof to move said members into clamp actuating opposition.

2. In a guy wire guard including a channelshaped member open on one side longitudinally thereof to receive a guy wire, the combination with a pair of pivotally mounted clamping jaws, the corresponding pivot ends of said jaws each having a slot, of a pivot support having opposed tongues each projecting through one of said slots and securing said support to the inner wall of said member on the side thereof opposite the open side of said member,-said support including a' spacer portion between said tongue' and jaws engaging the inner wall of said member, said jaws movable laterally relative to each other and to said open side, and a jaw actuating bolt engagin said jaws intermediate the ends thereof, said bolt extending loosely through a side of said member and in a direction substantially normal to a plane including said open side and pivot support.

' ALWIN G. S'IEINMAYER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 623,606 Homan Apr. 25, 1899 1,181,687 Seiss May 2, 1916 1,971,477 Blackburn Aug. 28, 1934 2,061,306 Hocher et a1. Nov. 17, 1936 2,061,307 Hocher et al., Nov. 17, 1936 2,264,430 Bierce Dec. 2, 1941 2,511,012 Runde et a1 June 13, 1950 FOREIGN PATENTS Number Country Date 18,882 Great Britain Aug. 28, 1902 

